been estimated yet, a value is set and saved automatically. It can be changed
manually.

computed values are now deleted.

loading. This allows to keep the zoom after action.

skeleton of an organ. These points are neither plotted nor included in
computations. This is useful when the end of the skeleton is crooked.

images are loaded.

organ profiles.

contextual. It depends on the model chosen and past actions.

timestamp (if there is any, and if the option has been chosen).

the radius.

from the GUI:
* 'percent_diam': transverse range for searching the next point
                  (in diameter unit)
* 'detection_step': step size for the skeleton detecvtion (in pixels)

- bugfixes for Py2/3 compatibility
- multilingual support with gettext (English-only for now)
- partial refactoring, for the multilingual support
- new ways of estimating the growth length
- new estimation of B, with the selection of a steady-state image

- xrange -> range
- pylab.find -> numpy.flatnonzero
- scipy.misc.fromimage -> numpy.asarray

phenotyping.

a hdf5 data file.